解析 B。解析:渗入地下并储存在地下的水被称为地下水(groundwater)。地表水(surface water)是在地球表面的水,如河流、湖泊等。土壤水(soil water)只是存在于土壤中的一部分水,概念较窄。河流水(river water)是地表水的一种,不是渗入地下储存的水,所以答案是B。
Groundwater is stored in the pore spaces and joints of rocks and unconsolidated (unsolidified) sediments or in the openings widened through fractures and weathering.The water-saturated rock or sediment is known as an "aquifer". Because they are porous, sedimentary rocks, such as sandstones and ...
In lowland country almost any spot on the ground mayoverliewhat was once the bed of a river that has since become buried by soil; if they are now below the water's upper surface (the water table), the gravels and sands of the former riverbed, and its sandbars, will be saturated with...
Water stored in the Antlers Sand may have provided even larger volume than that in the Hensel/Gellespie. Implications of this scenario for sediment deposition are intriguing. A newly-formed trunk stream that tapped a major ground-water reservoir would display a rapid increase in baseflow discharge...
It is known, however, that the distribution of groundwater is uneven, and that much of it lies at great depths.Groundwater is stored in the pore spaces and joints of rocks and unconsolidated (unsolidified) sediments or in the openings widened through fractures and weathering. The water-...
Nearly 50 percent of all groundwater is stored in the upper 1,000 meters of Earth. At greater depths within Earth, the pressure of the overlying rock causes pores and cracks to close, reducing the space that pore water can occupy, and almost complete closure occurs at a depth of about ...
is known, however, that the distribution of groundwater is uneven, and that much of it lies at great depths.意思是然而可以确定的是,地下水资源的分布非常不均匀,且大多埋藏在很深的地底。选项分析:A选项与第五段末句相反,正确;B选项是原文同义改写;C选项是原文同义改写;D选项是原文同义改写。
there is no beginning or end. As water moves around in the hydrosphere it changes state among liquid vapour and ice. The time taken for water to move from one place to another varies from seconds to thousands of years and the amount of water stored in different parts of the ...
为了帮助大家备考托福。提高阅读成绩,打有准备的仗,下面小编给大家带来托福阅读TPO28(试题+答案+译文)第1篇:Groundwater,希望大家喜欢。 托福阅读原文 【1】Most of the world’s potable water—freshwater suitable for drinking is accounted for by groundwater, which is stored in the pores and fractures in...
On an annual basis in California, the volumes of bedrock water transpiration exceed the volumes of water stored in human-made reservoirs, and woody vegetation that accesses bedrock water accounts for over 50% of the aboveground carbon stocks in the state. Our findings indicate that plants commonly...